TightVNC is a free remote control software package derived from the popular VNC software. With TightVNC, you can see the desktop of a remote machine and control it with your local mouse and keyboard, just like you would do it sitting in the front of that computer.

I used to use tight VNC quite often on my home network, its easy to setup and configure, and just makes things nice and smooth when you dont want to install a mouse and keyboard on every pc on your network, or if you are offering to support others PC’s. Just use tight VNC to remotely control the client PC’s screen and you can do whatever you want with it from virtually anywhere in the world!

From the official Tight VNC Site

TightVNC is a free remote control software package. With TightVNC, you can see the desktop of a remote machine and control it with your local mouse and keyboard, just like you would do it sitting in the front of that computer. TightVNC is:

* free for both personal and commercial usage, with full source code available,
* useful in administration, tech support, education, and for many other purposes,
* cross-platform, available for Windows and Unix, with Java client included,
* compatible with standard VNC software, conforming to RFB protocol specifications.

With TightVNC, you can:

* cut your expenses and save your time on traveling,
* help your friends and family to solve problems with their computers remotely,
* make sure nothing wrong is happening on your computers when you are away.

TightVNC uses so-called “tight encoding” of areas, which is effectively a combination of JPEG compression and other types of encoding. It is possible to watch videos and play DirectX games through TightVNC over a broadband connection, albeit at a low frame rate.[citation needed] TightVNC includes many other common features of VNC derivatives, such as file transfer capability.
wikipedia

Download TightVNC